DIY advice needed, please! I bought a heavy mirror (13kg) to hang on a wall that I assumed was brick or cavity (it's the dividing wall between my house and next door). Turns out it is hollow - the plaster is built out a good few inches from the brick/breeze block. I know that you can get wall anchors to go into plasterboard, but the mirror's weight would all be on two strap hangings going into a bit of plaster, which seems like a disaster waiting to happen! If anyone knows of a way that I can make this work before I have to return my lovely new mirror, I'd be very grateful to hear it. Thanks.

Thanks for replying, Welsh Brickie. I am a DIY dunce - is the idea that I would drill/stick/attach in some way architrave around the mirror to help keep it in place? It's a really thin oak frame (heavy because of depth of it and size of the mirror) so visible architrave around it wouldn't quite look right. If it's a fixable problem I'm happy to pay someone to come and do it, but not sure what trade that would come under and so who I'd contact.

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